Regular Expressions 101

(?s)applies the following effective flags to the remainder of the pattern: gms

s modifier: single line. Allows a dot to match line terminators

<the literal < (60₁₀ / 74₈ / 3C₁₆)

Group 1(str|date|arr|int|long)

1st Alternativestr

strthe literal text str (case sensitive)

2nd Alternativedate

datethe literal text date (case sensitive)

3rd Alternativearr

arrthe literal text arr (case sensitive)

4th Alternativeint

intthe literal text int (case sensitive)

5th Alternativelong

longthe literal text long (case sensitive)

.*?any Unicode character, repeated any number of times

="the literal text ="

Group 2(.+?)

.+?any Unicode character, repeated at least once

">the literal text ">

Group 3(.*?)

.*?any Unicode character, repeated any number of times

</the literal text </

\1the text saved by group 1

>the literal > (62₁₀ / 76₈ / 3E₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(?s)<(str|date|arr|int|long).*?="(.+?)">(.*?)</\1>

New

<str name="name">John</str>
<date name="year">2021</date>
<arr name="food">
   <str>Pizza</str>
   <str>Meat</str>
</arr>